<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>错误</title>
    <style type="text/css">
        div {
            text-align: center;
        }
    </style>
</head>
<body>
<hr>
<div>
    <h1>系统错误页面</h1>
</div>
</body>
</html>